Where does the spark go on a dual fire coil?
Dual fire coils send spark to both cylinders, all the time. Regardless of which cylinder is on the compression stroke. Single fire coils designate spark to only the cylinder that is on the compression stroke. Spark is delivered to one cylinder at a time.
What should the spark plug be on a Dyna?
Just disconnect it from the regulator and test the CPK side of the connector. I checked for a Dyna the primary coil side should only be between 0.3 and 0.5 ohms. I remembered 3 ohms from somewhere, maybe it was my truck. Anyhow if your coil is a sealed unit you will have to test the plug going in it.
How to test no spark on Harley Davidson?
Test each of these (C & D) to terminal (A) for the primary side ohm test. You can also do a volt test to the first (A) terminal by testing the voltage on it after the key is turned on for 2 seconds. It should read 12 volts to grd. If it doesn’t then you have to go deeper into the codes thrown.
What causes a motorcycle to have no spark?
If it is determined that your motorcycle has no spark; do not just assume that the problem is your coil. There may be an underlying issue. You may have a dead short effecting voltage delivery to your coil. You may have a bad sensor, ECM or TSSM.
Dual fire coils send spark to both cylinders, all the time. Regardless of which cylinder is on the compression stroke. Single fire coils designate spark to only the cylinder that is on the compression stroke. Spark is delivered to one cylinder at a time.
Just disconnect it from the regulator and test the CPK side of the connector. I checked for a Dyna the primary coil side should only be between 0.3 and 0.5 ohms. I remembered 3 ohms from somewhere, maybe it was my truck. Anyhow if your coil is a sealed unit you will have to test the plug going in it.
Test each of these (C & D) to terminal (A) for the primary side ohm test. You can also do a volt test to the first (A) terminal by testing the voltage on it after the key is turned on for 2 seconds. It should read 12 volts to grd. If it doesn’t then you have to go deeper into the codes thrown.
What should spark reading be on ignition coil?
If your coil reads under 11.00, then chances are pretty good that this is the reason you’re not getting any spark or a very weak one. Replace the coil with a good quality new one, make sure you attach and tighten the leads correctly, plug in the top cable that goes to the distributor, turn the key and you should be good to go!